Door catch and lock.



No. 695,888. Patanted Mar. l8, I902.

' R. C. SECKER.

DOOR CATCH AND LOCK (Application filed Aug. 23, 1901. (No Model.) 2Sheets $hoei I,

III

No. 695,888. Patented Mar. l8, |9 02.

R. c. SECKER.

DOOR CATCH AND LUCK.

(Application filed Aug. 23, 1901.)

(No Model.) 2 Sheets-Shasta Hifgzsscs V 1 80 1" Elfiorggyz v nun ROBERTCOURTNEY SEOKER, OF SOUTHAMPTON, NElV YORK.

DOOR CATCH AND LOCK.

SPECIFICATION forming part of Letters Patent N 0. 695,888, dated March18, 1962. Application filed August 23, 1901. Serial No. 73,045. (Nomodel.)

To all whom it may concern:

Be it known that 1, ROBERT COURTNEY SEOKER, a subject of the King ofGreat Britain, residing at Southampton, in the county of Suffolk andState of New York, have invented a new and useful Door Catch and Look,of which the followingis a specification.

The invention relates to improvements in door catches and locks.

The object of the present invention is to improve the construction ofdevices for holding doors and to provide a simple, inexpensive, andeflicient one adapted to be readily mounted on a door and designed to besub stituted for an ordinary lock and capable of holding a door in aclosed position and of being readily locked to prevent the door frombeing opened without a key.

A further object of the invention is to provide a door-holder of thischaracter which will be adapted to automatically engage a keeper-platewhen the door is closed and which when not locked may be readilydisengaged from the keeper-plate when the necessary force is applied.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a sectional view of a door catch and lockconstructed in accordance with this invention and shown applied to adoor, the locking-arm being out of engagement with the frame. Fig. 2 isa sectional view, the locking-arm being in engagement with the frame.Fig. 3 is a transverse sectional view. Fig. 1 is a horizontal sectionalview. Fig. 5 is a detail view of the keeper-plate. Fig. 6 is a detailperspective view of the outer portion of the looking-arm. Figs. 7 and 8are sectional views illustrating a modification of the invention. Fig. 9is a detail perspective view of the locking-arm. Fig. 10 is a detailview illustrating a modification of the frame. Fig. 11 is a detail viewof a modification of the keeper-plate.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

1 designates a casing constructed of suitable metal and provided withperforated flanges or extensions 2 for the reception of screws or othersuitable fastening devices for securing the casing to a door. The saidcasing, which is provided with a removable face-plate 1, is designed tobe mounted in a mortise of a door, as indicated in Fig. l of thedrawings, and it receives a sliding frame consisting of a plate or bar3, provided with a pair of parallel arms 4, located equidistant of theends of the plate or bar and supporting a spindle i, upon which a roller5 is mounted. The roller 5, which may be constructed of rubber or anyother suitable material, is adapted to engage a curved keeperplate 6,which is substantially sigmoidallyshaped and which is adapted to bemounted on a door-frame to provide a seat 7 for the roller 5. The curvedkeeper-plate presents an inclined portion 8 to form a beveled face fordirecting the roller into the seat 7 when the door is closed.

The front or outer end wall of the lock-casing is inwardly offset toform a recess 5 for the reception of the roller 5, and it is providedwith slots or openings, through which extend the arms 4:. The roller isnormally held in an extended position by means of a pair of coiledsprings 9, connected with the front or outer wall of the casing and withthe ends of the plate or bar 3 and adapted to be distended to permit theroller to be forced inward sufficiently to ride up the angularlydisposedfaces of the keeper plate. The springs hold the roller firmly in theseat of the keeper-plate and maintain the door in a closed position; butthey permit the roller to be forced inward automatically when thenecessary force is applied to the door to open and close the same.

The spring-actuated frame is held in an extended position to retain theroller in the seat of the keeper-plate and to lock the door when closedby means of an oscillatory locking-arm 10, pivoted at one end andarranged as clearly illustrated in Figs. 1 and 2 of the drawings.

The locking-arm 10, which is adapted to swing downward from the positionshown in Fig. 1 to that illustrated in Fig. 2, is held out of engagementby a spring 11 and is locked in engagement by a bolt 12. The spring 11is secured to the casing at the top thereof, and one end is free and isadapted to be en gaged by the locking-arm; but any other form I ofspring may be employed for this purpose.

' slight pull.

The arm is provided at its inner or pivoted end with a rectangularopening for the reception of a knob-spindle, and it has rounded orannular end portions 13, which are arranged in bearing-openings of thesides of the lockcasing. The knob-spindle 14, which is of the ordinaryconstruction, is squared and receives a pair of knobs 15, which areadapted to be partially rotated to oscillate the locking-arm.

The sliding bolt 12 is provided at its outer end with a reduced portionor projection 16,-

and it is approximately U-shaped in crosssection, and it is providedwith a longitudinal groove 17, receiving a rounded rib 18 of thelocking-arm. The sliding bolt has converging inner walls and conforms tothe configuration of the rounded rib, whereby it is interlocked with thesame, as clearly shown in Fig. 3 of the drawings. The locking-arm isprovided at its outer end with laterallyextending lugs 19, and thesliding bolt is provided at its inner end with depending lugs 20. Therib terminates short-of the laterallyextending lugs to enable thesliding bolt to be moved outward clear of the said rib to permit theparts to be separated. The depending lugs of the sliding bolt assist insupporting and strengthening the same, and the arm is provided betweenthe laterally-extending lugs and inner shoulders 21 with straight sideedges, on which the depending lugs of the bolt slide. The dependinglugsof the bolt are also arranged to be engaged by a key 22, and thelock-casing is provided with a keyhole for the introduction and removalof the key. When the key is turned in the lock, it is carried intoengagement with the lugs of the sliding bolt, and the latter is therebyreciprocated to carry its projection 16 into and out of a perforation 23of the plate or bar of the sliding frame.

The plate or bar of the frame is provided with a stop 24 to limit themovement of the locking-arm, and the latter is provided at the sideopposite that on which the rib is rotated with opposite grooves orrecesses 25, forming a projecting portion to fit a recess of the key.The locking arm may be constructed with different ribs, projections, orrecesses to conform to the construction of the key.

In Figs. 7 and 8 of the accompanying drawings is illustrated amodification of the invention in which the springs 26 are arranged tohold the bar or plate of the frame 27 a short distance from the adjacentportion 28 of; the front wall of the casing when the locking-arm 29 israised and out of engagement with the frame. When the parts are in thisposition, the roller 30 engages the keeper-plate 31, but does not extendto the back of the recess or seat, and the said roller is adapted tohold a door in its closed position and at the same time will permit thedoor to be opened by a When the locking-arm 29 is swung downward intoengagement'with the frame, as illustrated in Fig.8 of the drawings, theroller is extended outward to the back of the recess, the springs beingcompressed by such outward movement of the frame. When in this position,the frame and the roller firmly engage the keeper-plate and there isalso sufficient friction on the outer end of the locking-arm to hold itin position. The locking-arm is provided with a bore or opening in whichis mounted a sliding-bolt 32, the locking-arm forming a casing orhousing for the bolt. The outward movement of the bolt is limited by ascrew 43 or other suitable fastening device mounted on the upper portionof the locking-arm and extending into a recess 34 of the bolt. The boltis also provided with a bottom recess 35, forming opposite shouldersadapted to be engaged by a key. The lower face of the locking-arm isconcave, as shown in Fig. 9, and is provided with a series oflongitudinal grooves forming ribs 36 to fit corresponding notches of thekey. (Not shown.) The ribs may be arranged in any suitable manner toprovide a key of the desired shape and to produce the necessaryvariation in the combined door catch and look, so that the key of onelook will not open another look. The locking-arm is held in an elevatedposition by a spring 38, mounted on the rear wall of the casing, asshown.

Instead of providing a roller for engaging the keeper-plate the framemay be provided with an oppositely-beveled head 39, approximatelytriangular in horizontal section and adapted to engage an opening 40 ofa plate 41. The keeper-plate 41 is provided with an oblong opening andthe frame is preferably provided at the head with a flange arranged toabut against the outer face of the keeperplate. The oppositely-beveledhead is adapted to engage the keeper-plate automatically when a door isclosed, and it will permit the door to be readily opened by a slightpull.

It will be seen that the combined door catch and lock is exceedinglysimple and inexpensive in construction, that it is adapted to be readilyapplied to a door, and that it is ca pable of operating the latch forholding the door closed and of looking it in such position.

What I claim is- 1. A device of the class described comprising a casing,a reciprocating frame extending through the casing and provided withmeans for engaging a keeper, an oscillatory arm pivoted at one end inrear of the frame and adapted to be swung into and out of a position inalinement with the frame, and a reciprocating key-actuated bolt alsoarranged to engage the frame, substantially as described.

2. A device of the class described comprising a reciprocating frameprovided with means for engaging a keeper, an oscillatory arm mounted inrear of the frame and adapted to engage the same, and a key-operated IIObolt carried by the arm and adapted to engage the frame, whereby the armis locked in engagement with the same, substantially as described.

3. A device of the class described comprising a casing, aspring-actuated frame mounted in the casing and provided with a recessor opening, a pivoted locking-arm mounted in the casin g and adapted toengage the frame, and a bolt mounted on the locking-arm and adapted tobe operated by a key to engage it with and disengage it from the saidrecess or opening, substantially as described.

4:. A device of the class described comprising a casing, a sliding framemounted in the casing and having arms extending through the same, aroller carried by the arms, springs connected with the frame and adaptedto throw the same outward,a locking-arm mounted in the casing andarranged to engage the frame, an exterior knob connected with thelocking-arm, and a key-operated bolt carried by the locking-arm andarranged to engage the frame, substantially as described.

5. A'device of the class described comprising a casing, a frameslidingly mounted in the casing, a locking-arm pivotally mounted in thecasing and provided with a rib, a sliding bolt mounted on andinterlocked withthe rib and arranged to be engaged by a key, and meansfor operating the arm, substantially as described.

6. A device of the class described comprising a casing, a movable frame,alocking-arm provided at its ends with lugs and having a rib terminatingshort of the lugs, and a sliding bolt interlocked with the rib andprovided with a projecting portionadapted to be engaged by a key,substantially as described.

7. .A device of the class described comprising a casing, a movableframe, a locking-arm grooved at one side and provided at the 0ppositeside with a rib, and a sliding bolt mounted on and interlocked with therib and having a projecting portion or lug adapted to be engaged by akey, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

ROBERT COURTNEY SECKER.

Witnesses: I

CHARLES GALE, ALBERT ALLEN.

